🐢Intermediate 2
Table of Contents
In the Intermediate part 2, we have covered the following topics
Conditional Statements:
Conditional statements in Python are used to execute different actions based on whether a condition is true or false. The main constructs include if, elif (short for "else if"), and else. These statements allow for branching logic, enabling the program to make decisions and execute specific blocks of code accordingly, enhancing the flexibility and control flow of Python programs.
1.1. If Statements:
The if statement in Python checks a condition and executes a block of code if the condition is true. If the condition evaluates to false, the block of code is skipped. It's the most basic form of conditional execution in Python.
1.2. If-else Statements:
The if-else statement extends the functionality of if by providing an alternative block of code to execute when the condition evaluates to false. If the condition is true, the code under if is executed; otherwise, the code under else is executed.
1.3. Elif Statements:
The elif statement allows you to check multiple conditions in sequence. It comes after an if statement, and if the preceding if condition is false, it evaluates its own condition. If true, the corresponding block of code is executed; otherwise, subsequent elif or else blocks are checked.
Loop Statements:
Loop statements in Python allow for repetitive execution of a block of code. The primary loop constructs include for loops, which iterate over a sequence of elements, and while loops, which repeat until a specified condition becomes false. These statements facilitate automation, iteration, and handling of repetitive tasks, contributing to the efficiency and versatility of Python programs.
2.1. For statements:
The for loop in Python iterates over a sequence, such as a list or a range, executing a block of code for each item in the sequence. It's commonly used when you know the number of iterations beforehand or when iterating through collections like lists, tuples, or dictionaries.
2.2. While Statements:
The while loop in Python repeats a block of code as long as a specified condition is true. It's useful when the number of iterations is not known in advance or when you want to loop until a certain condition is met. Be cautious to avoid infinite loops by ensuring the condition eventually becomes false.
2.3. Break:
The break statement in Python is used to exit a loop prematurely. When encountered within a loop, it terminates the loop's execution immediately, regardless of the loop's condition or the number of iterations remaining, allowing for conditional termination of loops based on certain criteria.
2.4. Pass:
The pass statement in Python is a null operation, serving as a placeholder when syntactically required but no action is desired. It's often used as a placeholder in empty code blocks, functions, or classes, allowing the code to pass without causing any errors.
Functions:
Functions in Python are blocks of reusable code designed to perform a specific task. They promote code organization, modularity, and reusability by encapsulating logic into named blocks. Functions can take parameters, return values, and are invoked using a function call, enhancing code readability and maintainability.
Intermediate 2 Document 📚
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